Potassium monopersulfate oxidizes water to remove contaminants and protect key chemical levels (chlorine, pH, alkalinity, hardness).
Wish I knew sooner
"I was skeptical of what you see on Facebook and Instagram but this is the real deal!!! I used 4 scoops to close my pool last yr and we had a hard winter, I removed the cover and I was totally blown away. I added 3 more scoops let it run for a few days and it was as clear as ever. 1 scoop a week is all I do and it’s crystal clear all season."
